I'm a fan of the PS2. Its a nice solid system that has some age and experiance behind it. Plus it was the first console system that featured DVD capability(a feature that I didn't know about until later reasearching the system). While I only have 1 PS2 game I still enjoy the system and once I get some spare cash in my pocket.. I'm going to get a few.
As for the Cube... another system that looks real good and has good games that just plain kick(Resident Evil and Smash Bros. Melee just to name at least two and Rogue Leader if you want to go for three). Going to try and get it or GBA sooner or later but I'm tring to get a new PC, some Anime DVD's and all kinds of other stuff so my console conquest has been on hold as of late.